1040040027251 has 2 divisors, whose sum is σ = 1040040027252. Its totient is φ = 1040040027250.

The previous prime is 1040040027241. The next prime is 1040040027263. The reversal of 1040040027251 is 1527200400401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1040040027251 - 2¹⁰ = 1040040026227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1040040027251.

It is not a weakly prime, because it can be changed into another prime (1040040027241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520020013625 + 520020013626.

It is an arithmetic number, because the mean of its divisors is an integer number (520020013626).

Almost surely, 2^{1040040027251} is an apocalyptic number.

1040040027251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040040027251 is an equidigital number, since it uses as much as digits as its factorization.

1040040027251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 26.

Adding to 1040040027251 its reverse (1527200400401), we get a palindrome (2567240427652).

The spelling of 1040040027251 in words is "one trillion, forty billion, forty million, twenty-seven thousand, two hundred fifty-one".